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Fixed Inductors

Fixed inductors are electromechanical devices that store energy in the form of a magnetic field. They are commonly used in electrical circuits to filter high-frequency signals from low-frequency signals, or to create a time delay between two signals in the circuit. The SRU2009-4R4Y is a type of fixed inductor, and is widely used in automotive and mobile phone circuitry. In this article, we\'ll discuss the application field and working principle of this inductor.

Application Field

The SRU2009-4R4Y fixed inductor is designed for use in automotive electronics and mobile phone circuitry. It can be used in a variety of applications, including power supply systems, voltage modulation, interference suppression, switched-mode power supply (SMPS) circuits, and automotive sensing applications. It can also be used to filter out high-frequency noise from low-frequency signals, or to create a time delay between two signals. Its wide application makes it a highly versatile component that can be used in a variety of different electronics.

Working Principle

A fixed inductor is a type of electronic component that stores energy in the form of a magnetic field. It works by creating a magnetic field when a current passes through it. This magnetic field induces an electric field, creating a back-EMF, which opposes the original electric field and reduces the current. This reaction causes the magnetic field to increase in strength, so the inductor stores energy in the form of a magnetic field.

When the current is reversed, the magnetic field also reverses, inducing an electric field with a voltage polarity opposite to the original field. This electric field opposes the original field, allowing the current to pass through. When the current is stopped, the energy stored in the inductor is released in the form of a back-EMF.

The SRU2009-4R4Y fixed inductor has a high quality ferrite core and an inductance value of 4.4uH. Its saturation current is 0.8A, its resistance is 64mohms, and its self-resonant frequency is 70MHz. Its high self-resonance frequency and low DC bias current combine to make it ideal for use in automotive and mobile phone circuits.

Conclusion

The SRU2009-4R4Y fixed inductor is an ideal component for use in a variety of automotive and mobile phone circuits. Its high self-resonance frequency and low DC bias current combine to make it an efficient and reliable component. Its versatility and ease of use make it a widely used component in the electronics industry.

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